Fish finder question

[Bentrod]

Question for those more experienced than me... Last Saturday went looking for perch in front of Clear Creek and found about 15 Jumbos ) in 30fow. During the 4 hours the fish finder was lit up like this. What could that have been? And it was moving, it was not stationary. Thanks!

Edit: @Bentrod... I pulled done your image and re-uploaded with the new site settings... picture is now much smaller.

 

[Princecraft175]

I was seeing the same thing in that area. I'm glad you posted this question. Although I'm not certain i believe it is probably bait fish like smelt. Hope someone else has a for sure answer.

 

[Ticker]

Looks like bait fish

 

[big rod]

How high was you Sensitivity set? Or how high was your Gain set?

 

[Chipper1]

Is it possible your boat kept swinging over a net?

 

[m burr]

Leaning towards big rods guess... sensitivity might be high and you are seeing the thermocline.

 

[Bentrod]

Sensivity was exactly as Josh at Angling Outfitters set it 2 years ago . If it was a net, must have been really lucky. If it was smelt, next time I will get a small net, at least Try it. I like to think it was all perch and my skills need improvement. Hopefully they will be there for one more outing.

 

[F7Firecat]

Those are fish....of some sort I think, becasue your not moving and they appear as lines. It could possibly be the thermocline, try adjusting your sensittivity a little lower and see if they are still there.

Honestly just because Josh set up your graph at his shop doesn't mean its good to go on the water. I took mine to him because I had a fogging issue a couple years ago he hooked it up and he changed all the settings. Was brutal out on the water and I had to do a factory default and then adjust it to my liking of overlays, sensitivity and colour lines.